Revamp hook_help() implementations.

Looking into this I noticed there are several problems with the hook_help() implementations throughout Services

- Multiple references to deprecated admin/modules#description.
- Improperly named paths result in no submodules showing up on the Help page at all, regardless of whether they're enabled or not.
- In general all the help text is completely useless.

I am kind of pondering the idea of extensively expanding the hook_help() implementation in services.module and just removing it for all the submodules. What do people think of this?

OK, so that is exactly what I've done. I took the introductory text from the handbook page and spiced it up a little, then removed all the other hook_help() implementations, none of which were actually doing anything. Honestly I don't think they have much use, the documentation in the browser is much more extensive and contextual (who actually visits admin/help anyways?)

Patch attached, I'll give it a day or two to give people a chance to speak up.

There might be some coding standards issues in this patch we aren't using the . delimiter correctly. Mix of old d6 style and new d7 style. Otherwise is good in terms of new help text.

Damn you D6 stupid coding standards! I have committed the attached patch which is fixed.